EcoStrength Aspiration Chair Height Elongated BowlThe EcoStrength Aspirations Chair Height Elongated Bowl from American Standard produces a powerful, vacuum assisted flush that uses just 0. 8 gpf 3. 0 Lpf when paired with the EcoStrength Aspirations tank, sold separately. Vacuum assisted technology combines less than a gallon of water with strong suction power, resulting in a clean, clear bowl with every flush. This elongated bowl has a 17 in. (432mm) height for more comfort when sitting and standing.